Charging system of a hydraulic accumulator for an agricultural or work vehicle

An agricultural or work vehicle, comprising:

• a processing unit,
• at least one hydraulic actuator associated with a work organ of the vehicle,
• a control lever configured to provide electrical signals for controlling said at least one hydraulic actuator,
• a hydraulic pump,
• a hydraulic accumulator,
• a hydraulic circuit, a portion of the hydraulic circuit being operatively connected to the hydraulic pump, wherein the portion of hydraulic circuit comprises:
• an open-center directional valve configured to control an operation of said at least one hydraulic actuator based on an electrical signal generated by said control lever,
• a hydraulic oil collection tank, and
• a diverter valve arranged to alternately connect a first partialization hydraulic line of the open-center directional valve with said collection tank and with said hydraulic accumulator,
• wherein the processing unit is configured to connect the first partialization hydraulic line of the open-center directional valve with said hydraulic accumulator using the diverter valve when the following conditions are simultaneously verified:
• a) a pressure value measured at the hydraulic accumulator is lower than a first predetermined threshold, and
• b) said control lever is in a rest position.